File content as of revision 80:e989b2f090f4:

/* mbed Microcontroller Library 
* Copyright (c) 2006-2015 ARM Limited 
* 
* Licensed under the Apache License, Version 2.0 (the "License"); 
* you may not use this file except in compliance with the License. 
* You may obtain a copy of the License at 
* 
*     http://www.apache.org/licenses/LICENSE-2.0 
* 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License. 
 */ 


#include <mbed.h> 
#include "mbed-events-master/mbed_events.h" 
#include "ble/BLE.h" 
#include "ble/Gap.h" 
#include "ble/services/HeartRateService.h" 

DigitalOut led1(LED1, 1); 


const static char     DEVICE_NAME[] = "HRM"; 
static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE}; 


static uint8_t hrmCounter = 100; // init HRM to 100bps 
static HeartRateService *hrServicePtr; 

static EventQueue eventQueue(/* event count */ 16 * EVENTS_EVENT_SIZE); 


void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) 
{ 
    BLE::Instance().gap().startAdvertising(); // restart advertising 
} 

//void  connectionCallback ( const  Gap :: ConnectionCallbackParams_t * params)
//{
//    Gap::Handle_t gap_handle = params-> handle;
//    Gap::ConnectionParams_t new_params;
// 
//    new_params.minConnectionInterval =  1000 ;
//    new_params.maxConnectionInterval =  1000 ; 
//    new_params.connectionSupervisionTimeout =  30000;//3200 ; 
//    new_params.slaveLatency =  29 ;
//    ble.gap().updateConnectionParams(gap_handle, & new_params);
//}
 

void updateSensorValue() { 
    // Do blocking calls or whatever is necessary for sensor polling. 
    // In our case, we simply update the HRM measurement. 
    hrmCounter++; 


    //  100 <= HRM bps <=175 
    if (hrmCounter == 175) { 
        hrmCounter = 100; 
    } 


    hrServicePtr->updateHeartRate(hrmCounter); 
} 


void periodicCallback(void) 
{ 
    led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ 

    if (BLE::Instance().getGapState().connected) { 
        eventQueue.call(updateSensorValue); 
    } 
} 


void onBleInitError(BLE &ble, ble_error_t error) 
{ 
    (void)ble; 
    (void)error; 
   /* Initialization error handling should go here */ 
} 


void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) 
{ 
    BLE&        ble   = params->ble; 
    ble_error_t error = params->error; 

    if (error != BLE_ERROR_NONE) { 
        onBleInitError(ble, error); 
        return; 
    } 

    if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { 
        return; 
    } 

    ble.gap().onDisconnection(disconnectionCallback);

    /* Setup primary service. */ 
    hrServicePtr = new HeartRateService(ble, hrmCounter, HeartRateService::LOCATION_FINGER); 

    /* Setup advertising. */ 
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); 
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); 
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); 
    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); 
    ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); 
    ble.gap().setAdvertisingInterval(1000); /* 1000ms */ 
    ble.gap().startAdvertising(); 
    printf("Hello!");
}

void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) { 
    BLE &ble = BLE::Instance(); 
    eventQueue.call(Callback<void()>(&ble, &BLE::processEvents)); 
} 

int main() 
{ 
    printf("Hello!");
    eventQueue.call_every(500, periodicCallback); 
    BLE &ble = BLE::Instance();
    ble.onEventsToProcess(scheduleBleEventsProcessing); 
    ble.init(bleInitComplete); 
//    ble.gap().onConnection(connectionCallback);

     eventQueue.dispatch_forever(); 

     return 0; 
 }